Product Specification V1.0 Revision 2019-06-11 Date BL-M7668BU2 Model Name IEEE 802.11a/b/g/n/ac/(2T2R) WLAN + BT5.
Table of Contents Revision History.......................................................................................... 1 1. Introduction ............................................................................................................. 1 1.1 General Description .............................................................................................. 1.2 Features ............................................................................................................... 1.
Revision History Date Document Product Revision Revision 1.0 V1.0 2019/06/11 Description Preliminary release 1. Introduction 1.1 General Description The BL-M7668BU2 is a highly integrated 2*2 802.11a/b/g/n/ac Wireless LAN (WLAN) network and bluetooth combo module. USB 1.0/1.1/2.0 interface. It combines a WLAN MAC, a 2T2R capable WLAN baseband, and bluetooth support 5.0 performance.
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3 . Product Technical Specifications 3.1 General Specifications Item Description Product Name BL-M7668BU2 Main Chip MT7668AU Host Interface USB 2.0 IEEE Standards IEEE 802.11a/b/g/n/ac Operating Frequencies 2.4~2.4835&5.15~5.835GHz WIFI: 802.11b: CCK, DQPSK, DBPSK 802.11g: 64-QAM,16-QAM, QPSK, BPSK Modulation 802.11n: 64-QAM,16-QAM, QPSK, BPSK 802.11ac: 256-QAM,64-QAM,16-QAM, QPSK, BPSK BT: 8DPSK,π/4DQPSK, GFSK Working Mode Infrastructure, Ad-Hoc WIFI: 802.11b: 1, 2 ,5.5,11Mbps, 802.
ESD CAUTION: Although this module is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this module. It must be protected from ESD at all times and handled under the protection of ESD. 3.2 DC Power Consumption VDD=3.3V，Ta= 25 °C，unit: mA Supply current RX sense mode(No Link) Typ Max 65 100 1Mbps 802.11b 11Mbps Supply current Typ. Max. Typ. Max. Continuous TX mode 551 660 546 580 RX mode 52 108 56 105 6Mbps 802.11g 54Mbps Supply current Typ. Max.
802.11a 6Mbps 54Mbps Supply current Typ. Max. Typ. Max. Continuous TX mode 702 862 765 868 RX mode 68 94 72 100 802.11n HT20(5G) MCS0 MCS7 Supply current Typ. Max. Typ. Max. Continuous TX mode 721 836 700 736 RX mode 75 106 80 105 802.11n HT40(5G) MCS0 MCS15 Supply current Typ. Max. Typ. Max. Continuous TX mode 723 831 686 721 RX mode 80 105 90 113 802.11nAC80(5G) MCS0 MCS9 Supply current Typ. Max. Typ. Max.
11n-HT20-MCS7:-70dBm@PER<10%; 11n-HT40-MCS7:-68dBm@PER<10%; 11acVHT80-MCS9:-59dBm@PER<10%; 3.4 Bluetooth RF Specification RF Characteristics for BT Items Contents Host Interface USB Specification 5.0/4.2 LE/4.1/3.0/2.1 Modulation FHSS:GFSK, π/4-DQPSK, 8DPSK Channel frequency 2.402~2.480 GHz Data rate 1Mbps,2Mbps,3Mbps TX Characteristics min. typ. max. Unit Power level(BR/EDR) 0 2 5 dBm Power level(BLE) 0 2 5 dBm RX Characteristics min. typ. max.
4. Pin Assignments Figure 4 Pin Assignments (Top view) Pin No： Pin Name Type Description 1 GND P GND 2 RF0 I/O 3 GND P GND 4 GND P GND 5 RF1 I/O 6 GND P 7 LED I/O 8 GND P 9 DP+ I/O USB differential data line 10 DM- I/O USB differential data line 11 3.
5. Typical Application Circuit RF reference circuit Figure 5 Typical application circuit NOTE： RF port connect to antenna though IPEX connector.
6. Mechanical Specifications Module dimension: Typical ( L*W * H): 27*17.7*3.1mm (L*W*H) ，Tolerance: ±0.
7. Others 7.1 Package Information Figure 7 Package Information 7.2 Storage Temperature and Humidity 1. Storage Condition: Moisture barrier bag must be stored under 30℃, humidity under 85% RH. The calculated shelf life for the dry packed product shall be a 12 months from the bag seal date. Humidity indicator cards must be blue, <30%. 2.Products require baking before mounting if humidity indicator cards reads > 30% temp < 30℃, humidity < 70% RH, over 96 hours. Baking condition: 125℃, 12 hours.
FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) thi s device may not cause harmful interference, and (2) this device must accept any interference received, incl uding interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’ s authority to operate the equipment.
Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions This module is stand-alone modular.
